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The Streamlight Vulcan Dual Filament Lantern Replacement Toggle Switch 440121 is the perfect addition to your Streamlight Flashlight. This Toggle Switch by Stream-Light is made to be incredibly durable, thanks to top-of-the-line materials and construction. The Stream Light Vulcan Toggle Switch lets you easily toggle through the various modes on your lantern. For an amazing way to enhance your lantern, choose the Streamlight Toggle Switch Replacement for Vulcan!